Cross bearing roller mounting device

Abstract

The utility model discloses cross bearing roller mounting device relates to bearing assembly equipment field, and the utility model discloses the technical scheme including frame, bearing fixed seat and guide core cylinder, the frame rotation cooperation has bearing fixed seat, and the axle core line horizontal arrangement of bearing fixed seat, and bearing fixed seat is used for with bearing inner ring coaxial fixed, guide core cylinder is vertically arranged in the top of bearing fixed seat, and guide core cylinder is relative frame rotation cooperation, and the lower end outer wall of guide core cylinder is coaxial with the hole of bearing outer ring and sets up, and the lower end eccentricity of guide core cylinder is provided with the discharge gate, and the upper end of guide core cylinder is provided with the feeding port. Through the rotation eccentricity setting hole of guide core cylinder, can realize the contact side of roller falling and track to change constantly, can realize the cross of roller and appear to dump, realize the effect of cross bearing roller assembly, can improve cross bearing roller assembly efficiency obviously.

Description

Technical Field

[0001] This utility model relates to the field of bearing assembly equipment, and in particular to a cross-bearing roller mounting device. Background Technology

[0002] The market demand and application background of cross-bearings stem from the core pursuit of "high precision, high rigidity, and compactness" in modern high-end equipment manufacturing. They primarily replace the complex structures of traditional multi-bearing combinations, perfectly solving the challenges of demanding working conditions in fields such as industrial robot joints and CNC machine tool rotary tables, where they must simultaneously withstand radial and axial loads and overturning moments. Their value lies in directly empowering high-end equipment to achieve higher performance, load capacity, and reliability by simplifying design and improving rigidity and precision, making them a key supporting product in the wave of automation and intelligent equipment upgrades.

[0003] Because the rollers in cross-roller bearings need to be continuously cross-loaded, conventional assembly equipment cannot perform this operation well. Current solutions, such as the automatic assembly machine for cross-roller bearings disclosed in patent publication number CN109322932A, utilize both horizontal and vertical feeding devices, sharing a common feeding mechanism. However, since the roller diameters and heights vary, one of these methods inevitably fails to transport the rollers effectively, impacting yield. Furthermore, the structures of the two feeding devices are relatively redundant and complex. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a cross-bearing roller mounting device. By cleverly rotating the guide core cylinder with an eccentrically set inner hole, the contact side between the roller and the track can be continuously changed when the roller falls, so that the roller can tilt in a cross manner, achieving the effect of cross-bearing roller assembly, which can significantly improve the assembly efficiency of cross-bearing rollers.

[0005] The technical solution adopted by this utility model to solve its technical problem is: the cross-bearing roller mounting device includes a frame, a bearing fixing seat and a guide core cylinder;

[0006] The frame is rotatably fitted with the bearing mounting seat, the bearing mounting seat has a horizontally arranged axis, the bearing mounting seat is used to fix coaxially with the inner ring of the bearing, and the outer ring of the bearing is fixed relative to the frame;

[0007] The guide core cylinder is vertically arranged above the bearing fixing seat. The guide core cylinder is rotatably fitted relative to the frame. The lower outer wall of the guide core cylinder is coaxially arranged with the inlet hole of the outer ring of the bearing. The lower end of the guide core cylinder is eccentrically provided with an outlet, and the upper end of the guide core cylinder is provided with an inlet.

[0008] In state one, the guide core cylinder has its discharge port's core line close to the inner end of the bearing.

[0009] In state two, the guide core cylinder has its discharge port's core line close to the outer end of the bearing.

[0010] The inner ring of the bearing is locked by the bearing mounting seat, and the outer ring of the bearing is fixed relative to the frame.

[0011] The rollers fall into the bearing's inlet hole through the guide core cylinder. By shifting the position of the rollers relative to the track as they fall, the rollers tilt in different directions, so that they are cross-assembled in the track.

[0012] Specifically, rotate the guide cylinder so that the shaft of the guide cylinder outlet is close to the inner end of the bearing. At this time, when the roller falls, it will tilt outward and fall onto the track.

[0013] Then the bearing retainer drives the inner ring of the bearing to rotate by one roller fixing position angle, while the outer ring remains stationary, and the next roller fixing position of the inner ring of the bearing is aligned with the inlet hole;

[0014] At this point, rotate the guide cylinder again so that the axis of the guide cylinder's outlet is close to the outer end of the bearing. When the roller falls, it will tilt inward and land on the track, thus enabling adjacent rollers to tilt in different directions on the track.

[0015] Repeating the above steps will allow the bearing rollers to be assembled in a cross pattern on the track.

[0016] Preferably, the bearing mounting base includes a shaft sleeve, a positioning disc, a mandrel, and a tapered center;

[0017] The frame is horizontally provided with a through hole for the shaft cylinder to pass through. The shaft cylinder is rotatable relative to the through hole but cannot slide axially. The positioning plate is coaxially fixed to the front end of the shaft cylinder. The positioning plate is provided with an extrusion chamber corresponding to the inner hole of the shaft cylinder. Several sliding holes are radially distributed inside the positioning plate. The inner end of the sliding hole is located on the side wall of the extrusion chamber, and the outer end of the sliding hole is located on the outer peripheral wall of the positioning plate. A sliding rod is slidably fitted inside the sliding hole.

[0018] The mandrel is slidably fitted into the inner hole of the shaft cylinder. The conical mandrel is provided in the extrusion chamber. The front end of the mandrel is fixed to the conical mandrel. An elastic element is provided between the mandrel and the shaft cylinder. The elastic element pulls the mandrel backward. The frame is provided with a first cylinder. The output end of the first cylinder is located at the rear end of the mandrel.

[0019] The spring pulls the spindle backward, causing the tapered core to move backward as well. The tapered core then pushes the slide rod outward, and the outer end of the slide rod supports the inner ring of the bearing, thus locking the inner ring of the bearing.

[0020] When the bearing needs to be removed, the first cylinder is activated to push the mandrel forward, the conical mandrel slides forward, and the thrust on the slide rod is released, which will release the lock on the inner ring of the bearing.

[0021] The shaft is driven by an external power source to change the angle of the inner ring of the bearing.

[0022] The above enables the axial sliding and coaxial circumferential rotation of the spindle to proceed without interference.

[0023] Preferably, the elastic element is a spring sleeved on the rear section of the mandrel, and a limiting nut is provided at the rear end of the mandrel. The two ends of the spring abut against the limiting nut and the rear end of the shaft sleeve, respectively. This improves the stability of the elastic element's fixation.

[0024] Preferably, the shaft is rotated by a motor.

[0025] Preferably, the outer diameter of the guide core is smaller than the inner diameter of the inlet hole of the bearing outer ring, so as to deliver the roller more accurately into the inlet hole of the bearing outer ring.

[0026] Preferably, the frame is provided with a suspension platform, and the suspension platform is vertically provided with a rotating hole, which is rotatably fitted into the guide core cylinder. This facilitates providing rotational power to the guide core cylinder.

[0027] Preferably, a driven pulley is provided on the outside of the guide core cylinder, and a driving pulley is rotatably fitted to the frame. The driving pulley is connected to the driven pulley via a belt. The driving pulley is driven to rotate by an external power source, which in turn drives the driven pulley to rotate via the belt, thereby realizing the rotation of the guide core cylinder.

[0028] Preferably, the frame is equipped with a lifting mechanism, and the output end of the lifting mechanism is fixed to the suspension platform. During the descent of the suspension platform, the lower end of the guide core cylinder will enter the inlet hole of the bearing outer ring. The guide core cylinder can be moved in and out of the bearing outer ring inlet hole by lifting, allowing for more accurate feeding of the roller into the bearing outer ring inlet hole. Simultaneously, the guide core cylinder entering the bearing outer ring inlet hole prevents the bearing outer ring from rotating with the inner ring, thus achieving a fixed position of the outer ring relative to the frame.

[0029] Preferably, the guide core cylinder has a side hole corresponding to the side wall of the rotating hole, and the upper end face of the suspension platform has a feeding groove. One side of the bottom of the feeding groove has a feeding channel communicating with the side wall of the rotating hole, and the feeding channel corresponds to the side hole. The upper section of the other side wall of the feeding groove has a push hole, and a push rod is slidably fitted inside the push hole. The push rod pushes the roller from the settling groove through the feeding channel and the side hole to the inner hole of the guide core cylinder. The roller is first placed in the settling groove, and then pushed into the inner hole of the guide core cylinder by the push rod. The roller slides down through the inner hole of the guide core cylinder into the inlet hole of the bearing outer ring, and finally slides into the track. This allows for continuous and controllable feeding of the roller.

[0030] Preferably, the push rod is driven by a second cylinder.

[0031] The beneficial effects of this utility model are:

[0032] This solution cleverly uses a rotating, eccentrically set inner hole guide core cylinder to continuously change the contact side between the roller and the track as the roller falls, enabling the roller to tilt in a cross manner and achieve the effect of cross-shaped assembly of the rollers. This significantly improves the assembly efficiency of cross-shaped bearing rollers, has a high degree of automation, protects parts from bumps and scratches, and results in higher stability of finished product quality.

[0033] The rollers fall in a uniform direction and only tip over when they come into contact with the track, making material feeding simpler. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only three of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0036] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0037] Figure 3 This is a schematic diagram of the guide core cylinder relative to the bearing outer ring in states one and two of this utility model embodiment;

[0038] The components include: 1. Frame; 2. Bearing mounting seat; 3. Shaft cylinder; 4. Positioning plate; 5. Mandrel; 6. Conical core; 7. Slide rod; 8. Rubber contact end; 9. Elastic element; 10. Limit nut; 11. Guide core cylinder; 12. Inner hole; 13. First cylinder; 14. Inner ring of bearing; 15. Outer ring of bearing; 16. Inlet hole; 17. Suspension platform; 18. Driven pulley; 19. Lifting mechanism; 20. Side hole; 21. Feed chute; 22. Feed channel; 23. Push rod. Detailed Implementation

[0039] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0040] Example

[0041] like Figure 1 As shown, the cross-bearing roller mounting device includes a frame 1, a bearing mounting base 2, and a guide core cylinder 11. The frame 1 is rotatably fitted with the bearing mounting base 2, the bearing mounting base 2 has a horizontally arranged axis, and the bearing mounting base 2 is used to fix coaxially with the inner ring 14 of the bearing, while the outer ring 15 of the bearing is fixed relative to the frame 1. The guide core cylinder 11 is vertically arranged above the bearing mounting base 2, and the guide core cylinder 11 is rotatably fitted relative to the frame 1. The lower outer wall of the guide core cylinder 11 is coaxially arranged with the inlet hole 16 of the outer ring 15 of the bearing, the lower end of the guide core cylinder 11 has an eccentrically arranged outlet, and the upper end of the guide core cylinder 11 has an inlet.

[0042] The guide core cylinder 11 in state one has its discharge port shaft line close to the inner end of the bearing.

[0043] In state two, the guide core cylinder 11 has its discharge port shaft line close to the outer end of the bearing.

[0044] The inner ring 14 of the bearing is locked by the bearing mounting seat 2, and the outer ring 15 of the bearing is fixed relative to the frame 1.

[0045] The rollers fall into the bearing inlet 16 through the guide core cylinder 11. By offsetting the position of the rollers relative to the track as they fall, the rollers tilt in different directions, so that the rollers are cross-assembled in the track.

[0046] Combination Figure 3 As shown in the right-hand diagram, specifically, rotating the guide core cylinder 11 brings the core line of the discharge port of the guide core cylinder 11 closer to the inner end of the bearing. At this time, when the roller falls, it will tilt outward and fall onto the track.

[0047] Then the bearing mounting seat 2 drives the inner ring 14 of the bearing to rotate by the angle of one roller fixing position, while the outer ring remains stationary, and the next roller fixing position of the inner ring 14 of the bearing is aligned with the inlet hole 16.

[0048] Combination Figure 3 As shown in the left figure, the guide cylinder 11 is rotated again so that the shaft of the discharge port of the guide cylinder 11 is close to the outer end of the bearing. When the roller falls, it will tilt inward and land on the track. This allows adjacent rollers to tilt in different directions on the track.

[0049] Repeating the above steps will allow the bearing rollers to be assembled in a cross pattern on the track.

[0050] The bearing mounting base 2 includes a shaft cylinder 3, a positioning plate 4, a mandrel 5, and a tapered core 6;

[0051] The frame 1 has a horizontally arranged through hole for the shaft cylinder 3 to pass through. The shaft cylinder 3 is rotatable relative to the through hole but cannot slide axially. The positioning disk 4 is coaxially fixed to the front end of the shaft cylinder 3. The positioning disk 4 has a pressing chamber corresponding to the inner hole 12 of the shaft cylinder 3. The pressing chamber is a tapered hole with a gradually increasing diameter from the front end of the inner hole 12 of the shaft cylinder 3 toward the positioning disk 4. The positioning disk 4 has a plurality of sliding holes radially distributed inside. The inner end of the sliding hole is located on the side wall of the pressing chamber, and the outer end of the sliding hole is located on the outer peripheral wall of the positioning disk 4. A sliding rod 7 is slidably fitted inside the sliding hole; the outer end of the sliding rod 7 is a rubber contact end 8.

[0052] The mandrel 5 is slidably fitted into the inner hole 12 of the cylinder 3. A tapered mandrel 6 is disposed within the extrusion chamber, adapting to the tapered hole, with its outer diameter gradually increasing from back to front. The front end of the mandrel 5 is fixed to the tapered mandrel 6. An elastic element 9 is disposed between the mandrel 5 and the cylinder 3, pulling the mandrel 5 backward. The frame 1 is equipped with a first cylinder 13, the output end of which corresponds to the rear end of the mandrel 5.

[0053] The spring pulls the spindle 5 backward, which in turn moves the tapered core 6 backward. The tapered core 6 pushes the slide rod 7 outward, and the outer end of the slide rod 7 supports the inner ring 14 of the bearing to achieve the purpose of locking the inner ring 14 of the bearing.

[0054] When the bearing needs to be removed, the first cylinder 13 is activated to push the spindle 5 forward, the conical core 6 slides forward, and the thrust on the slide rod 7 is released. The slide rod 7 will then release the lock on the inner ring 14 of the bearing.

[0055] The shaft cylinder 3 is driven by an external power source to change the angle of the inner ring 14 of the bearing.

[0056] The above enables the axial sliding and coaxial circumferential rotation of the spindle 5 to proceed without interference.

[0057] The elastic element 9 is a spring that is sleeved on the rear section of the mandrel 5. A limiting nut 10 is provided at the rear end of the mandrel 5, and the two ends of the spring abut against the limiting nut 10 and the rear end of the shaft sleeve 3, respectively. This improves the stability of the elastic element 9.

[0058] The shaft cylinder 3 is driven to rotate by a motor, specifically a stepper motor.

[0059] The outer diameter of the guide core cylinder 11 is smaller than the inner diameter of the inlet hole 16 of the bearing outer ring 15, so that the roller can be delivered more accurately to the inlet hole 16 of the bearing outer ring 15.

[0060] The frame 1 is provided with a suspension platform 17, and the suspension platform 17 is vertically provided with a rotating hole. The guide core cylinder 11 is rotatably fitted into the rotating hole, which facilitates providing rotational power to the guide core cylinder 11.

[0061] The guide core cylinder 11 is externally equipped with a driven pulley 18, and the frame 1 is rotatably fitted with a driving pulley. The driving pulley is connected to the driven pulley 18 via a belt. The driving pulley is driven to rotate by an external power source, specifically a motor, which in turn drives the driven pulley 18 to rotate via the belt, thereby achieving the rotation of the guide core cylinder 11. In this design, a stepper motor is used; alternatively, a stepper motor can also drive the guide core cylinder 11 via gears.

[0062] The frame 1 is equipped with a lifting mechanism 19, and the output end of the lifting mechanism 19 is fixed to the suspension platform 17. During the descent of the suspension platform 17, the lower end of the guide core cylinder 11 will enter the inlet hole 16 of the bearing outer ring 15. The guide core cylinder 11 can be moved in and out of the inlet hole 16 of the bearing outer ring 15 by lifting, allowing for more accurate feeding of the roller into the inlet hole 16 of the bearing outer ring 15. Simultaneously, the guide core cylinder 11 entering the inlet hole 16 of the bearing outer ring 15 prevents the bearing outer ring 15 from rotating with the inner ring, thus achieving a fixed position of the outer ring relative to the frame 1. The lifting mechanism 19 uses a cylinder.

[0063] The guide core cylinder 11 has a side hole 20 corresponding to the side wall of the rotating hole. The upper end face of the suspension platform 17 has a feed groove 21. One side of the bottom of the feed groove 21 has a feed channel 22 communicating with the side wall of the rotating hole. The feed channel 22 corresponds to the side hole 20. The upper section of the other side wall of the feed groove 21 has a push hole. A push rod 23 is slidably fitted inside the push hole. The push rod 23 pushes the roller from the settling groove through the feed channel 22 and the side hole 20 to the inner hole 12 of the guide core cylinder 11. The roller is first placed in the settling groove, and then pushed into the inner hole 12 of the guide core cylinder 11 by the push rod 23. The roller slides down through the inner hole 12 of the guide core cylinder 11 into the inlet hole 16 of the bearing outer ring 15, and finally slides onto the track. This allows for continuous and controllable feeding of the roller. The push rod 23 is driven by a second cylinder.

[0064] The beneficial effects of this utility model are:

[0065] This solution cleverly uses the rotating eccentric setting of the inner hole 12 of the guide core cylinder 11 to continuously change the contact side with the track when the roller falls, so as to achieve the effect of the roller tilting in a cross shape and achieving the effect of cross-shaped assembly of the roller.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cross-bearing roller mounting device, characterized in that, It includes a frame (1), a bearing mounting base (2), and a guide core cylinder (11); The frame (1) is rotatably fitted with the bearing fixing seat (2), the bearing fixing seat (2) is horizontally arranged, the bearing fixing seat (2) is used to be coaxially fixed with the bearing inner ring (14), and the bearing outer ring (15) is fixed relative to the frame (1); The guide core cylinder (11) is vertically arranged above the bearing fixing seat (2). The guide core cylinder (11) rotates relative to the frame (1). The lower outer wall of the guide core cylinder (11) is coaxially arranged with the inlet hole (16) of the outer ring (15) of the bearing. The lower end of the guide core cylinder (11) is eccentrically provided with a discharge port, and the upper end of the guide core cylinder (11) is provided with a feed port. The guide core cylinder (11) in state one has its core line at the discharge port close to the inner end of the bearing. The guide core cylinder (11) in state two has its core line at the discharge port close to the outer end of the bearing.

2. The cross-bearing roller mounting device according to claim 1, characterized in that: The bearing mounting base (2) includes a shaft cylinder (3), a positioning plate (4), a mandrel (5), and a tapered core (6); The frame (1) is horizontally provided with a through hole for the shaft cylinder (3) to pass through. The shaft cylinder (3) is rotatably fitted relative to the through hole but cannot slide axially. The positioning disk (4) is coaxially fixed to the front end of the shaft cylinder (3). The positioning disk (4) is provided with an extrusion chamber corresponding to the inner hole (12) of the shaft cylinder (3). Several sliding holes are radially distributed inside the positioning disk (4). The inner end of the sliding hole is located on the side wall of the extrusion chamber, and the outer end of the sliding hole is located on the outer peripheral wall of the positioning disk (4). A sliding rod (7) is slidably fitted inside the sliding hole. The mandrel (5) is slidably fitted into the inner hole (12) of the cylinder (3). The conical core (6) is provided in the extrusion chamber. The front end of the mandrel (5) is fixed to the conical core (6). An elastic element (9) is provided between the mandrel (5) and the cylinder (3). The elastic element (9) pulls the mandrel (5) backward. The frame (1) is provided with a first cylinder (13). The output end of the first cylinder (13) is provided corresponding to the rear end of the mandrel (5).

3. The cross-bearing roller mounting device according to claim 2, characterized in that: The elastic element (9) is a spring that is sleeved on the rear section of the mandrel (5). A limit nut (10) is provided at the rear end of the mandrel (5). The two ends of the spring abut against the limit nut (10) and the rear end of the shaft sleeve (3), respectively.

4. The cross-bearing roller mounting device according to claim 2, characterized in that: The shaft (3) is driven to rotate by a motor.

5. The cross-bearing roller mounting device according to claim 2, characterized in that: The outer diameter of the guide core cylinder (11) is smaller than the inner diameter of the inlet hole (16) of the bearing outer ring (15).

6. The cross-bearing roller mounting device according to claim 1, characterized in that: The frame (1) is provided with a suspension platform (17), and the suspension platform (17) is provided with a rotating hole in a vertical direction. The guide core cylinder (11) is rotatably fitted into the rotating hole.

7. The cross-bearing roller mounting device according to claim 6, characterized in that: The external side of the guide core cylinder (11) is provided with a driven pulley (18), and the frame (1) is rotatably fitted with a driving pulley, which is connected to the driven pulley (18) by a belt.

8. The cross-bearing roller mounting device according to claim 7, characterized in that: The frame (1) is provided with a lifting mechanism (19), and the output end of the lifting mechanism (19) is fixed with the suspension platform (17). During the descent of the suspension platform (17), the lower end of the guide core cylinder (11) will enter the inlet hole (16) of the bearing outer ring (15).

9. The cross-bearing roller mounting device according to claim 8, characterized in that: The guide core cylinder (11) is provided with a side hole (20) corresponding to the side wall of the rotating hole. The upper end face of the suspension platform (17) is provided with a feed groove (21). One side of the bottom of the feed groove (21) is provided with a feed channel (22) communicating with the side wall of the rotating hole. The feed channel (22) is provided with the side hole (20). The upper side wall of the other side of the feed groove (21) is provided with a push hole. A push rod (23) is slidably fitted in the push hole. The push rod (23) pushes the roller from the sink through the feed channel (22) and the side hole (20) to the inner hole (12) of the guide core cylinder (11).

10. The cross-bearing roller mounting device according to claim 9, characterized in that: The push rod (23) is driven by the second cylinder.

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